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0 votes
1 answer
5k views

How to resolve Path Traversal vulnerability for the below code

const downloadFile = blobstoreRouter.get('/blobstore/download/:filename', (req, res) => { var localFile = path.join(__dirname, '..', escape(req.params.filename)); var file = require('fs')....
Krishnakumar Prabhu Natarajan's user avatar
1 vote
0 answers
24 views

IE browse image from blobestorage in new tab not working, but in Chrome works as well

I am using Angular 4 on UI. Image dowloaded by url. As i understand it is convertet to blob storage and we have such link(blob:9C3A4E2E-488F-4C64-A1CD-7E4C4E464187) when browser elements at browser. ...
Ivan Smyrnov's user avatar
0 votes
0 answers
55 views

App Engine second upload to Blobstore not working

I have a form whose data is asynchronously uploaded to Blobstore. When the upload is completed, the backend page outputs another blobstore.get_upload_url() to use for a second upload. However, when ...
Federico Capello's user avatar
0 votes
0 answers
435 views

Uncaught TypeError: Illegal invocation jquery.min.js line 4

I have written the following code to upload file using blobstore google app engine. I am getting Uncaught TypeError, how to overcome it. Everything works fine but this exception is still there. I ...
Aditya Borde's user avatar
  • 1,257
0 votes
1 answer
158 views

how to save a image from js client to blobstore?

I want to save a image from my browser into google blobstore. What I already tried: Transform my img into a base64 string: reader = new FileReader(); reader.readAsBinaryString(file); call my ...
Laslo89's user avatar
  • 105
2 votes
1 answer
105 views

GAE + Blobstore: Serve different image size depending on viewport width

As we know, we can serve images from the blobstore using its serving url, and append =sXX to indicate the image's width: <!-- serving an image of 600px width --> <img src="{{serving_url}}=...
hyang123's user avatar
  • 1,280
-1 votes
3 answers
149 views

Generate upload url before form submission

I am trying to resolve expired upload urls by delaying their generation before a file uploads and not when the form is rendered. A solution I found is to do this on form submission or on button click ...
scroll_lock's user avatar
3 votes
0 answers
493 views

BlobStore upload URL works, but returns 404

I am attempting to upload pictures to google Blobstore using purely javascript. I have a REST api that I query to get the upload url. I grab the upload url and post using the following code: <form ...
Derek's user avatar
  • 171
0 votes
1 answer
622 views

Uploading images to App Engine in Java using Jquery blueimp [closed]

Could someone point me to some resource to implement multiple image uploads to Java app engine blobstore using JQuery blueimp plugin? The docs have a maven implementation but I understand porting an ...
user2793781's user avatar
0 votes
2 answers
1k views

Webapp Background File Upload to App Engine Blobstore

I would like to handle large file uploads to App Engine (Blobstore -> Google Cloud Storage) in my AJAX focused webapp hosted on the same App Engine domain. From the browser javascript client I call ...
Ryan Bavetta's user avatar
0 votes
1 answer
3k views

How to get response using jQuery when a html form is submitted?

I am using BlobStore to save an image. I have a jsp Page. Code for that page is following: <%@ page import="com.google.appengine.api.blobstore.BlobstoreServiceFactory" %> <%@ page import="...
Piscean's user avatar
  • 3,099
1 vote
1 answer
713 views

Upload binary data to AppEngine Blobstore via HTTP request

I'm trying to figure out the lowest data-overhead way to upload/download binary data to Google AppEngine's Blobstore from a JavaScript initiated HTTP request. Ideally, I would like to submit the ...
Markus A.'s user avatar
  • 12.8k
0 votes
1 answer
249 views

GAE blobstore url error: GET not supported

I am having trouble with the google app engine blob store. I am running in the development environment (ie local on my machine.) Heres what i am doing... once the form pops up i call into a servlet ...
nemisis enforcer's user avatar
4 votes
2 answers
2k views

Saving canvas image via JavaScript from Safari (5.0.x) to AppEngine Blobstore

My team and I are unhappy that our awesome animation app doesn't work on Safari because of a combination of Safari and AppEngine limitations. We're hoping one of you can help us find the "magic ...
drcode's user avatar
  • 3,387
1 vote
1 answer
779 views

Posting a text string to an App Engine blobstore url

I have a chunk of text in a big string I create dynamically in javascript in a web app. I want to save it to the blob store. However, I can't figure out how to make it work. I am creating the URL to ...
drcode's user avatar
  • 3,387

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